package 验证回文串.src.test;

public class testcharAt {
    public static void main(String[] args)
    {
        String str = "abc";
        System.out.println(str.charAt(0));
        System.out.println(str.charAt(1));
        System.out.println(str.charAt(2));
//        System.out.println(str.charAt(3));
    }
}
